
Uploadcare
Cloudinary
Uppy
Uploader Window
CarrierWave
CloudExplorer
Transloadit
Simple file uploader and robust APIs for uploading, transforming, and delivering any file into your app. Filestack is a collection of tools and powerful APIs that make it simple to upload, transform, and deliver content.

Buffer
Upload-Post
Ayrshare
Hootsuite
getLATE.dev
Postiz
Zernio
Postproxy is a unified API to publish, manage comments, direct messages, and reviews across Instagram, TikTok, LinkedIn, X, YouTube, Facebook, Threads, Bluesky, and more.

Which is more popular?
Based on our record, Filestack seems to be more popular. It has been mentioned 6 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | filestack.com | postproxy.dev |
| Pricing | ||
| Platforms | — | |
| Company | 2012 | Startup from Germany · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


Filestack is a cloud-based file management platform that provides tools for uploading, transforming, and delivering files in web, mobile, and desktop applications. Its features include a picker UI, which allows users to upload files from their local computers and various external sources, and the...
Postproxy is a social media API for products that need more than publishing. Publish posts, manage comments, DMs and reviews, track post and profile analytics, and receive webhooks across major platforms. Built for SaaS products, automation workflows, and agents that need reliable social media...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Filestack Tutorial Series: Basic Filestack Setup
More videos
Postproxy Walkthrough: Social Media API for Publishing, Comments & DMs
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Filestack and Postproxy.
Postproxy's answer:
We were building a product for ads creation at scale with fancy templates management, different platforms with adaptive sizing. Then Nano Banana got released and made a product largely obsolete. Postproxy was basically a part of that product.
Postproxy's answer:
Postproxy is a production-grade social media API for SaaS products, AI agents, and multi-tenant platforms. It provides one API for publishing, comments, direct messages, reviews, analytics, webhooks, and OAuth account connections across Instagram, Facebook, Threads, LinkedIn, TikTok, X, YouTube, Pinterest, Google Business Profile, Bluesky, and Telegram.
Compared with publishing-only APIs and automation tools, Postproxy is designed for customer-facing products that require official platform integrations, explicit delivery statuses, automatic retries, profile-group isolation, predictable pricing, and infrastructure built for production workloads.
Postproxy's answer:
Postproxy combines production-grade publishing infrastructure, engagement, and analytics in one social media API. Every publishing request has an explicit status and human-readable failure reason, failed deliveries can be retried automatically, and the same platform also handles comments, direct messages, reviews, profile analytics, and webhooks.
Postproxy uses official platform APIs and OAuth flows, supports isolated profile groups for multi-tenant products, and provides integrations for n8n, Make, and Zapier, as well as an MCP server for AI agents.
Postproxy's answer:
Postproxy is primarily built for developers and product teams creating SaaS platforms, AI agents, marketing tools, and multi-tenant social media products. It is also used by agencies and automation specialists that manage social accounts for multiple customers.
Individual creators can use Postproxy, but the platform is optimized for software products and production workflows rather than manual social media management.
Share your experience with using Filestack and Postproxy. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


It's a really great product, the integration is smooth, and the APIs are simple to use. Uploads are fast and reliable, with no lag or failures.
We have no reviews of Postproxy yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


This guide walks through how to implement image captioning using Filestack’s file picker. You can try it yourself in the interactive demo below, then copy the code into your own project. - Source: dev.to / 11 months ago
You’ve probably run into this situation before: your File Picker works fine with local uploads, Google Drive, and Dropbox, but your users need to pull files from somewhere else. Maybe it’s your company’s internal DAM, a headless CMS, or... - Source: dev.to / 11 months ago
Building an application that accepts user content is a standard requirement today. Whether you are running a classroom management tool or a print-on-demand shop, you need to accept files. However, accepting a file in your file uploader... - Source: dev.to / 12 months ago
Tracking Postproxy since Feb 2026.
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Cloudinary is a cloud-based service for hosting videos and images designed specifically with the needs of web and mobile developers in mind.
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Social Media API for developers. Post to TikTok, Instagram, YouTube, Facebook & 19 more platforms with one API call. MCP server for Claude/ChatGPT, white-label for SaaS. 70k+ users.
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Powerful APIs that enable you to send social media posts effortlessly. Post and manage your users social account via an API.
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